Figure 1
From: Cobalt complexes modulate plasmid conjugation in Escherichia coli and Klebsiella pneumoniae
The effect of cobalt complexes on the conjugation frequencies of plasmids with different incompatibility groups in liquid LB broth and on LB agar. Conjugation frequencies of (a) the IncP plasmid RP4, (b) the IncX2 plasmid R6K, (c) the IncW R388, and (d) the IncN plasmid pKM101, from E. coli J53 to hygromycin resistant E. coli J53 attTn7::hph in the presence of 100 µg/mL DMSO vehicle control or 100 µg/mL cobalt compound after four-hour incubation. Data shown are the mean ± standard deviation of three independent experiments, each carried out with four biological replicates. Cobalt complexes that significantly affected conjugation frequency compared to DMSO control are indicated with * (p ≤ 0.05), ** (p ≤ 0.01) or *** (p ≤ 0.001). ns, not significant.
